[submodule update] sonic-util

Fix error when running 'show lldp table' or 'show lldp neighbor'
through SSH command. (#1067)
[201911]: Multi asic show interface support (#1070)
[counterpoll] Add new FC group for port buffer drop counters
(#1024)
[201911] show interface portchannel support for Multi ASIC
(#1071)
Fix a typo in mellanox_buffer_migrator (#1090)
Fix pfcwd stats crash with invalid queue name (#1077)
[PFCWD] Fix issue with "pfcwd show stats" command during SONiC init
(#1018)
enable watchdog before running platform specific reboot plugin
(#1037)
Add namespace of the process in the coredump filename. (#1091)